Answer this question truthfully
### Question: Who is at highest risk for Tetralogy of Fallot ?
### Response: While the exact cause of Tetralogy of Fallot is unknown, several factors may increase the risk of a baby being born with this condition. These include:
A viral illness in the mother, such as rubella (German measles), during pregnancy Maternal alcoholism Poor nutrition A mother older than 40 A parent with tetralogy of Fallot Babies who are also born with Down syndrome or DiGeorge syndrome